Maps and Data 

What is GIS?

"Geographics Information Systems (GIS) is a technology that is used to create, manage, analyze, and map all types of data.

GIS connects data to a map, integrating location data (where things are) with all types of descriptive information (what things are like there). This provides a foundation for mapping and analysis that is used in science and almost every industry. GIS helps users understand patterns, relationships, and geographic context. The benefits include improved communication, efficiency, management, and decision-making." Learn more about GIS at ESRI.

How the Department of Planning Uses Maps and Data

We create different types of online maps that you can click on and use, as well as maps you can download. These maps are useful for: 

  • groups in the community,
  • government departments,
  • the City Council,
  • the Mayor's Office,
  • and anyone who wants to check them out.  

To learn more, visit our pages on GIS & Mapping and Data & Demographics. This data helps city leaders, planning workers, and the community decide how the city should grow and change. 

FEMA Flood Mapping

FEMA has issued new Preliminary Flood Insurance Rate Maps and a Flood Insurance Study of the City of Baltimore! The Planning Department in Baltimore keeps all the FEMA Map information for the city. These maps tell us where floods can happen and how high the water might get during a flood. For information on the upcoming public hearings on new maps, map changes, development guidelines, or Map Information Services Email Us.

Housing Market Typology

Baltimore's housing market typology helps sort neighborhoods based on their housing markets. This way the city can give money and resources to neighborhoods that need it the most. A typology is a critical tool used by the Department of Housing’s Vacants to Value program to address city-wide vacant housing challenges. 

Central Maryland Development Tracker Interactive Map

This interactive development tracker map helps you see where development projects are happening and how far along they are in the approval process. The dots on the map show how the project is doing when it has a public hearing to get permission for a building permit.